Network management method network management device, and optical add-drop node

摘要

Of the 101 OADM nodes multiple optical communication provided optical network ring made up of the optical transmission line of two-line consisting of (110) protection lines (100) working line in (A) above the network management device connected to one of a (102), (101) transmits the location information OADM nodes multiple optical network in (A) on (101), optical add-drop nodes multiple updates the operating wavelength information stored in the storage means based on the storing means for holding the operating wavelength information of the optical signal is, the failure information notified OADM nodes from a plurality of (101), and update made I and a control means for distributing optical add-drop multiple nodes to (101) operational wavelength information.